planner

### Constructing a Line from Part of a Scan

You can construct a line from a segment of a Linear Open or Linear Close scan. Planner creates a line from part of the scan. The details of the construction are included in this topic.

To construct a scan segment line:

1. Access the Construct Line dialog box (Insert | Feature | Constructed | Line).

2. Select the Scan Segment option.

3. Select a previously-created Linear Open or Linear Close scan.

4. Click the Segment Data button. The Scan Segment dialog box appears.

Scan Segment dialog box

5. Select either the Best Fit or BF Recomp option.

6. Select the portion of the scan used in the construction from this dialog box.

7. Type the number of points to potentially discard by entering values in the Discard Start and Discard End Maximum boxes.

8. Type a distance from the best fit line into the Discard Tolerance box. This tolerance is a form tolerance; it allows you to control what end points are accepted as part of the line. If the distance from the scan point to the best fit line is greater than this tolerance value, then the end point is discarded.

9. Enter the approximate start and end Points of the scan. To do this, select the Select points check box and then click in the Graphic Display window to complete the X, Y, and Z boxes. You can click anywhere in the Graphic Display window; however, Planner places the point on the scan nearest to where you clicked. You can also use the keyboard to edit the point values.

10. Click OK to accept the data and close the Scan Segment dialog box.

11. Click Create to construct the line from the scan.